texinfo/texinfo-4.13a-help-index-segfault.patch

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diff -up texinfo-4.13/info/indices.c.orig texinfo-4.13/info/indices.c
--- texinfo-4.13/info/indices.c.orig 2010-08-31 12:04:38.317462471 +0200
+++ texinfo-4.13/info/indices.c 2010-08-31 12:11:49.322624552 +0200
@@ -192,6 +192,7 @@ do_info_index_search (WINDOW *window, in
index for, build and remember an index now. */
fb = file_buffer_of_window (window);
if (!initial_index_filename ||
+ !fb ||
(FILENAME_CMP (initial_index_filename, fb->filename) != 0))
{
info_free_references (index_index);
@@ -287,8 +288,9 @@ index_entry_exists (WINDOW *window, char
return 0;
fb = file_buffer_of_window (window);
- if (!initial_index_filename
- || (FILENAME_CMP (initial_index_filename, fb->filename) != 0))
+ if (!initial_index_filename ||
+ !fb ||
+ (FILENAME_CMP (initial_index_filename, fb->filename) != 0))
{
info_free_references (index_index);
index_index = info_indices_of_file_buffer (fb);